Answers
The theoretical probability of getting a head when you flip a fair coin is
1
2
, but if a coin was actually flipped 100 times you may not get exactly 50 heads, although it should be close to this amount.
If a coin was flipped a hundred times, the amount of times a head actually did appear would be the relative frequency, so if there were 59 heads and 41 tails the relative frequency of flipping a head would be
59
100
(or 0.59 or 59%).
Relative frequency is used when probability is being estimated using the outcomes of an experiment or trial, when theoretical probability cannot be used.
For example, when using a biased dice, the probability of getting each number is no longer
1
6
. To be able to assign a probability to each number, an experiment would need to be conducted. From the experimental results, the relative frequency could be calculated.
The more times that an experiment has been carried out, the more reliable the relative frequency is as an estimate of the probability.
Example
Ella rolls a dice and records the number of times she scores a six. Find the relative frequency that Ella rolls a six on her dice.
Related Questions
Find the area of the following quadrilateral.
Answers
Answer: 480
Step-by-step explanation:
The quadrilateral ABCD is a trapezium
The formula for area of trapezium is
Area of trapezium = 1/2 × (parallel side 1 + parallel side 2) × h
So we can place the given values into the formula.
We get
Area = 1/2 × (9+15) × 40
Area = 1/2 × 24 × 40
By multiplying all of them we get
Area = 480cm
Find the area of the shape shown below.
1
3
3
7
7
Can you pls help this is due soon
Answers
Answer: 31.5 square units
Explanation:
The area of the rectangle is length*width = 7*3 = 21 square units
The area of the triangle is 0.5*base*height = 0.5*7*3 = 10.5 square units
The combined area is 21+10.5 = 31.5 square units
a student evoluated -4 + x for x = -9 and got an answer of 5. what might the student have done wrong
Answers
Answer:
The student may have forgotten the negative signs.
Step-by-step explanation:
Obviously, 4+5 = 9. However, this student may have forgotten that negative plus negative is equal to further negative, which is what we want. Instead, the answer 5 was provided, which leads to an incorrect sum of 1.
an agent gets a commission of Rs 500 on the sales which amount to Rs 5000 how much will the businessman get from the sales
Answers
Step-by-step explanation:
Since commission the commission and is already given then the total sales the businessman gets;Total sales
Rs 5000- Rs 500= Rs 4500
The required amount received by the businessmen is 4500, from the sale.
What is simplification?The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
Let the money businessman get be x,
According to the question,
x + commission of the agent = 5000
x + 500 = 5000
x = 4500
Thus, the required amount received by the businessmen is 4500.
Learn more about simplification here:
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what does it mean for segments to be congruent?
Answers
Answer:
see explanation
Step-by-step explanation:
If segments are congruent then they are equal in length
9. List the set of integers such that -3 IF YOU ANSWER I GIVE YOU STAR
Answers
What’s the answer???
Answers
Answer:
Step-by-step explanation:
100 POINTS!!! If you write the wrong answer you will be reported! (Find the probability of “landing” in the shaded region of the figures below. Round your answer to the nearest hundredth.)
Answers
Answer:
4
We know that
Area of rectangle = lb
Area = 10(20)
Area = 200 m²
Shaded region = πr²
=> 2 × 22/7 × (10/2)²
=> 2 × 22/7 × 10/4
=> 157 m²
Probability = 157/200 = 78.5%
5.
Area of the biggest circle = πr²
= 22/7 × (20)²
= 1256.6
Area of shaded region
π(10² - 5²)
π(100 - 25)
3.14(75)
235.6
Probability = 235.6/1256.6 = 18.7%
SOMEONE HELP ME PLEASE
Answers
Im pretty sure :)
The answer is 1 [tex]\frac{5}{16}[/tex] in
If helpful, brainliest please !
solve for x giving brainlest
Answers
Answer:
[tex]3[/tex]
Step-by-step explanation:
[tex] - 3( - 5x + 2) + x - 3 = 39[/tex]
[tex]15x-6+x-3 = 39[/tex]
[tex] 16x-9= 39[/tex]
[tex] 16x= 39+9[/tex]
[tex] 16x=48[/tex]
[tex]x = 48-16[/tex]
[tex]x = 3[/tex]
Hope it is helpful.....Answer:
x = 3
Step-by-step explanation:
Given
- 3(- 5x + 2) + x - 3 = 39 ← distribute parenthesis and simplify left side
15x - 6 + x - 3 = 39
16x - 9 = 39 ( add 9 to both sides )
16x = 48 ( divide both sides by 16 )
x = 3
Amelia drives 10 miles in 20 minutes. If she drove three hours in total at the same rate, how far did she go? subquestion - how many minutes did she drive in total
Answers
Answer:
Amelia drove 90 miles in 3 hours.
Step-by-step explanation:
she drove 10 miles in 20 minutes
we multiply this by 3, and get
30 miles in an hour ( 60 minutes)
then we multiply this by 3 and get
90 miles in 4 hours (180 minutes) :)
If a = 4-√15, then what is the value of :
1) a² + 1/a²
2) a³ + 1/a³
3) a∧4 + 1/a∧4
Answers
let me know if any questions
Write 2.71 as a simplified fraction.
Answers
Answer:
[tex] \frac{271}{100} [/tex]
Step-by-step explanation:
hopefully it makes sense
:)
The decimal 2.71 can be written as the simplified fraction as 271/100.
What are Fractions?Fractions are type of numbers which are written in the form p/q, which implies that p parts in a whole of q.
Here p, called the numerator and q, called the denominator, are real numbers.
The given number is 2.71.
We can write 2.71 as 2.71 / 1, since any number divided by 1 is the number itself.
Multiplying both numerator and denominator of 2.71 / 1 with 100, we get,
(2.71 × 100) / (1 × 100)
= 271/100
This cannot be simplified further since 271 is a prime number.
Hence the simplified fractional form of 2.71 is 271/100.
Learn more about Fractions here :
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Mrs. Magee purchased 3 ice cream cones with a $10 bill. Mrs. Magee was given $2.86 in change. What is the price of one ice cream cone?
Answers
Answer
5.56
Step-by-step explanation
The price of one ice cream cone is $2.38
The given parameters;
the money given by Mrs Magee for the 3 ice cream cones = $10the change given to Mrs Magee = $2.86The actual amount Mrs Magee purchased the 3 ice cream cones;
Total amount paid = $10 - $2.86 = $7.14
The price of one ice cream cone is calculated as follows;
[tex]Price \ of \ each = \frac{Total \ cost}{total \ number } \\\\Price \ of \ each = \frac{\$7.14}{3} = \$2.38[/tex]
Thus, the price of one ice cream cone is $2.38
Learn more here: https://brainly.com/question/20814121
a) State in plain language the null and alternative hypotheses for this test. (b) Calculate the expected cell counts for this dataset if the null hypothesis were true. Infection No Infection Received one vaccine shot Unvaccinated (c) Calculate the 1 test statistic for this dataset. d For degrees of freedom of 1. a value of 12.12 corresponds to a p-value of 0.0005. Based on this. what do you conclude about the original null hypothesis
Answers
Answer:
.
Step-by-step explanation:
write in vertex form
f(x)=x^2+12x+34
Answers
Answer:
(-6, -2)
Step-by-step explanation:
[tex]f(x) = {x}^{2} + 12x + 34[/tex]
[tex] = f(x) = {1x}^{2} + 12x + 34[/tex]
= a = 1, b = 12
[tex] = x = - \frac{12}{2 \times 1} [/tex]
[tex] = x = - \frac{12}{2} [/tex]
= x = -6
[tex] = f(x) = {x}^{2} + 12x + 34.. = - 6[/tex]
[tex] = f( - 6) = - 2[/tex]
= (-6, -2)
Find the midpoint of the line segment joining points A and B.
A(2, - 7); B(6,3)
Answers
Answer:
The answer is
( 6 , - 2)
Step-by-step explanation:
The midpoint M of two endpoints of a line segment can be found by using the formula
where
(x1 , y1) and (x2 , y2) are the points
From the question the points are
A(6,- 7); B(6,3)
Step-by-step explanation:
the number 126 is divisible by what numbers ? 2,3,4,5,6,9,10
Answers
Answer:
1,
Step-by-step explanation:
You may also be interested to know that all the numbers that 126 is divisible by are also known as the factors of 126. Not only that, but all the numbers that are divisible by 126 are the divisors of 126.
In the pair of supplementary angles shown below, the measure of the smaller angle is 36°.
Complete the equation that could be used to represent this situation. Then, solve the equation to complete the sentences.
120
36
34
180
38
144
90
56
(4x - 8) + =
The value of x is
The measure of the larger angle is
NO SILLY ANSWERS!
Answers
Answer:
38
Step-by-step explanation:
(4x-8)+36 = 180
4x - 8+36 = 180
4x +28 = 180
4x = 180-28
4x = 152
x = 152/4
x = 38
4a/5 (10a-25b) pls help me !ill give brainlist
Answers
Answer:
8a² - 20ab
Step-by-step explanation:
4a/5 (10a - 25b)
8a² - 20ab
Answer:
8a-20b
Step-by-step explanation:
I subtract 14 from a certain number I multiply the result by 3 the final answer is 3 what was the number
Answers
Answer:
15.
Step-by-step explanation:
3(x - 14) = 3
3x - 42 = 3
3x = 42 + 3 = 45
x = 15.
Let the number = x
Set up the equation:
3(x-14) = 3
Simplify:
3x -42 = 3
Add 42 to both sides
3x = 45
Divide both sides by3
X = 15
The number is 15
A 3m ribbon is cut into two pieces.The shorter length measures 0.75m.Write the ratio of the shorter length to the longer length in the simplest form a:b,
Answers
Answer:
let length of Ribbon B l
Therefore
L=30
Ribbons cutted in ratio 5 is to 3
Therefore length of ribbonS
Be 30*5
=150
And 3*30=90
Therefore lengths of ribbons be 150 and 90
hope this helps :)
have a great day ahead!
Which of the expressions are equivalent to the one below? Check all that
apply.
3. (1+5) + 6.9
A. 3. (5 + 1) + (69)
B. (6.9) + 3. (5 + 1)
C.3.1 +3.5+ 9.6
D. (3 + 1). (3 + 5) + (69)
Answers
Answer:
Only B,
Step-by-step explanation:
Because it is all addition it does not mater what order they are in,..
This is line segments
Answers
Step-by-step explanation:
[tex]here \: given \: that \: total \: lenth = bd = 67 \\ then \: bd = bc + cd \\ so \: we \: can \: write \: that \\ 67 = 3x - 2 + 4x + 13 \\67 = 3x + 4x - 2 + 13 \\ 67 = 7x + 11 \\ 7x = 67 - 11 \\ 7x = 56 \\ x = \frac{56}{7} \\ x = 8 \\ thankyou[/tex]
Answer:
[tex]\huge\boxed{\sf 22}[/tex]
Step-by-step explanation:
By looking at the line segment, we get to know that:
BD = BC + CD
Given that:
BD = 67
BC = 3x - 2
CD = 4x + 13
Solution:
Put the givens in the above equation made.
67 = 3x - 2 + 4x + 13
67 = 3x + 4x - 2 + 13
67 = 7x + 11
7x = 67 - 11
7x = 56
Divide both sides by 7
x = 56 / 7
x = 8
Now, Finding BC:
= 3x - 2
Put x = 8
= 3(8) - 2
= 24 - 2
= 22
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807Peace!Ayuda por favor [0,3 ∞ °] necesito determinar la desigualdad que representa el intervalo.
Answers
Answer:
1/2 of an answer is zero
Step-by-step explanation:
If the point (12,-2) changes to (-12,-2) in what quadrant would it be located?
Answers
Answer:
i think its Quadrant 3, since their both negatives
If it takes 20 minutes to walk 5 blocks and I walk back 2, how many minutes did it take ??
Answers
Answer:
12 minutes
Step-by-step explanation:
steps are in picture below.
And if you have any question about it you can ask.
Can someone please help me with problem 9x-7=-7
Answers
Answer:
9−7=−7
9−7+7=−7+7
9=0
9/9=0/9
=0/9
=0
Step-by-step explanation:
9−7=−7
9−7+7=−7+7
9=0
9/9=0/9
=0/9
=0
The zoo in Samir's city is building a new habitat for its 7 spider monkeys. The habitat will
have trees, ladders, and vines in a cube-shaped cage that measures 14 meters on each side.
What is the volume of the new monkey cage?
Answers
Answer:
Step-by-step explanation:
It's a cube. The volume formula is V = s * s * s
s = 14 meters
V = 14 * 14 * 14
V = 2744 m^3
What is the midpoint of (-2,-2) and (-3,-5)
Answers
Answer:
(-7/2, -5/2).
Step-by-step explanation:
[(-5 + (-2))/2), (-3 + (-2))/2)]
= (-7/2, -5/2).